/**
 * <pre>
 * $    : group id
 * _    : group key
 * $_   : group obj
 * $XXX : code id
 * _XXX : code key
 * XXX  : code obj
 * ----
 * GroupRoot is the top calss
 * 
 * naming
 * java: JavaName
 * underscore: JAVA_NAME,java_home
 * </pre>
 */

package com.trydofor.a9task.base.code.sysd;